How to Use Mail::Queue in Laravel - php

Question

I want to send emails to 100 users. Mail::send() is taking too much load time and isn't able to cover all emails of users. I'm trying to use Mail::queue() in my application, but I'm getting the error below while running
php artisan queue:listen.
[ErrorExcepton] Undefined Property :
SuperClosure\SerializableClosure::$binding.
Updated .env file with QUEUE_DRIVER = database.
Please help me find the solution to resolve this. Also, I am using the same code to run background jobs, using Laravel 5.3.
Here is my code
namespace App\Console\Commands;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\Mail;
use Illuminate\Support\Facades\DB;
class ProbationCronJobEmail extends Command
{
protected $signature = 'hrm:notify';
protected $description = "";
public function __construct()
{
parent::__construct();
}
public function handle()
{
$email = 'abc#gmail.com';
\Mail::queue('emails.probation',
['empname'=>'abc','id'=>'123'],function($msg) use($email){
$msg->from('abc#gmail.com');
$msg->to($email);
$msg->subject('Probation List as on '.date('Y-M-d'));
});
}
}
abc#gmail is a dummy email, i am using my corporate email instead.
if i simple type php artisan hrm:notify, getting no error.

Answer 1

I have a little example. I hope this will help.
<?php
public function mails_meeting($meeting, $group, $place, $date, $message, $user)
{
$subject = "meeting " . $group;
$cargos = Cargo::where('comision_id', '=', $meeting->comision_id)->where('active', '=', '1')->get();
foreach ($cargos as $cargo) {
$mail_reciever = $cargo->asambleista->user->email;
Mail::queue('correos.comision_mail', ['group' => $group, 'place' => $place,
'date' => $date, 'message' => $message, 'user' => $user],
function ($mail) use ($subject, $mail_reciever) {
$mail->from('siarcaf#gmail.com', 'Automatic mail system');
$mail->to($mail_reciever);
$mail->subject($subject);
});
}
return 0;
}
In your_app/config/mail.php .
'sendmail' => '/usr/sbin/sendmail -bs',
'stream' => [
'ssl' => [
'allow_self_signed' => true,
'verify_peer' => false,
'verify_peer_name' => false,
],
],
.env file
MAIL_DRIVER=smtp
MAIL_HOST=mailtrap.io
MAIL_PORT=2525
MAIL_USERNAME=your_username
MAIL_PASSWORD=your_password
MAIL_ENCRYPTION=your_conf